Windows under GCC compile C program calls Golang Static Library and C dynamic Library

This is a creation in Article, where the information may have evolved or changed.

1. Compiling Golang Static Library

Package Mainimport ("C" "FMT")//export Foofunc Foo (A, b int) int {return a + b}//export Barfunc Bar () {fmt. Println ("Hello, I ' m lilei.")} Func main () {}

compiling static libraries and header files using commands

Go build-o main.a-buildmode=c-archive main.go

2. Writing a dynamic library of C

Demo.h

int foo ();
int bar ();

Demo.c

#include "demo.h"
#include <stdio.h>

int foo () {
int a[3] = {n/a};
int s = 0;
int len = sizeof (a)/sizeof (a[0]);
printf ("len=%d\n", Len);
for (int i=0; i<len;i++) {
S+=a[i];
}
printf ("Calc s=%d\n", s);
return s;
}

int bar () {
printf ("Hello, I am Lilei");
return 32;
}

Gcc-shared-fpic-o demo.so demo.c

The demo.so dynamic library file is generated

3. C Entry Program Compilation

TEST.c

#include "demo.h"
#include "Main.h"
#include <stdio.h>

int main () {
Foo ();
Bar ();
Bar ();
GoInt32 a=3;
GoInt32 b=4;
Goint s = Foo (A, b);
printf ("s=%d\n", s);
return 0;
}

Copy the Golang static library file and the header file to the C folder

Execute GCC command

>gcc-v test.c-o test1 Main.a demo.so-lwinmm-lntdll-lws2_32

Run Test1